Virginia Republican Congressman Frank Wolf said Thursday that survivors of the Benghazi, Libya terror assault have been forced to sign non-disclosure agreements prohibiting them from speaking out about the deadly attack.

“According to trusted sources that have contacted my office, many if not all of the survivors of the Benghazi attacks along with others at the Department of Defense, the CIA have been asked or directed to sign additional non-disclosure agreements about their involvement in the Benghazi attacks,” Wolf said on the House floor. “Some of these new NDAs, as they call them, I have been told were signed as recently as this summer.”

Wolf said that if accurate, “this would be a stunning revelation.”

“It also raises serious concerns about the priority of the administration’s efforts to silence those with knowledge of the Benghazi attack in response,” Wolf said.

The congressman said he was requesting from the CIA, Defense Department and State Department a list of all personnel or contractors asked to sign non-disclosure waivers.

“Perhaps through a list of all the employees that have signed the NDAs related to Benghazi we may finally develop a witness list to subpoena for eyewitness testimony to learn what happened that night where we lost four American lives,” Wolf said. “I do not expect the Obama administration to be forthcoming with answers, but if this Congress — if this Congress — does not ask for the information and compels its delivery the American people will never learn the truth.”